f25l004a Elite Semiconductor Memory Technology Inc., f25l004a Datasheet - Page 14

• Manufacturer Part Number: f25l004a
• Description: 3v Only 4 Mbit Serial Flash Memory
• Manufacturer: Elite Semiconductor Memory Technology Inc.

ESMT
4K-Byte-Sector-Erase
The Sector-Erase instruction clears all bits in the selected sector
to FFH. A Sector-Erase instruction applied to a protected
memory area will be ignored. Prior to any Write operation, the
Write-Enable (WREN) instruction must be executed. CE must
remain active low for the duration of the any command sequence.
The Sector-Erase instruction is initiated by executing an 8-bit
command, 20H, followed by address bits [A
FIGURE 10 : SECTOR-ERASE SEQUENCE
Elite Semiconductor Memory Technology Inc.
SCK
SO
CE
SI
MODE3
MODE0
MSB
23
0 1 2 3 4 5 6 7 8
-A
0
]. Address bits
20
HIGH IMPENANCE
MSB
ADD.
[A
the sector address (SA
VIH. CE must be driven high before the instruction is executed.
The user may poll the Busy bit in the software status register or
wait TSE for the completion of the internal self-timed
Sector-Erase cycle. See Figure 10 for the Sector-Erase
sequence.
15 16
MS
-A
ADD.
12
] (A
23 24
MS
= Most Significant address) are used to determine
ADD.
31
X
), remaining address bits can be VIL or
Publication Date: Jan. 2009
Revision: 1.6
F25L004A
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